Cylinder-wrench.



PATENTED JAN. 21, 1908.

5.1mm. CYLINDER WRENCH.

APPLICATION FILED MAY 31, 1905.

I'll! NORRIS FIT a: co., WAIIIIIIGTDI, n. c

UNITED STATES PATENT OFFICE.

HENRY LUND, OF GRAFTON, NORTH DAKOTA, ASSIGNOR, BY DIRECT AND MESNEASSIGN- MENTS, TO FOSSTON MANUFACTURING COMPANY, OF ST. PAUL, MINNESOTA,A CORPO- RATION OF MINNESOTA.

CYLINDER-WRENCH.

Patented Jan. 21, 1908.

Application filed Mayfil. 1905. Serial No. 263,019.

To all whom it may concern:

Be it known that I, HENRY LUND, a citizen of the United States, residingat Grafton, in the county of Walsh and State of North Dakota, haveinvented certain new and useful Improvements in Cylinder Wrenches, ofwhich the following is a specification.

My invention relates to improvements in wrenches, designed especiallyfor use in con nection with threshing cylinders to tighten and loosenthe bolts which secure the cyl inder teeth in place, and consistsparticularly in improvements in the wrench covered by U. S. LettersPatent No. 644,675, issued to me on March 6, 1900.

To this end my invention consists in the features of construction andcombination hereinafter described and claimed.

In the accompanying drawings forming part of this specification, Figure1 is a plan view of my improved wrench partly broken away; Fig. 2 is aside elevation of the same; Fig. 3 is a section on line r-x of Fig. 1;Fig. 4 is a detail of the wrench-socket Fig. 5 is a detail of a lockingpin, and Fig. 6 is an end view ofthe wrench-socket.

In the drawings A represents a bar or rod provided at one end with atransversely extending handle 2 and at its other end with an o eningthrough which extends the stem 3 of t e wrench-head 4. The wrench-headis rotatable in the end. of the bar and is secured against endwisedisplacement by a pin 5. The wrench-head projects at ap roximately aright angle to the bar A and is ormed in its outer end with a transverseopening 6 to receive the stem 7 of the wrench-socket 8. Thewrench-socket is adapted to rotate in said 0 ening and is' securedagainst endwise disp acement by a pin 9. Said wrench-socket is providedaround its inner edge with notches 10, with which is adapted to 006erate the toothed end 11- ofv the dog 12 slidably extending through thewrench-head parallel with the wrench-socket. The outer end 13 of the dogextends beyond the outer wall of the wrench-head as shown, and said dogis held in locking engagement with the wrench-socket by means of asurrounding coil spring 14. The dog 12 is rotatable so that the engagingside of the tooth 11 may be positioned to bear against either side ofthe teeth formed by the notches 10 to determine the direction ofrotation of the wrench-socket. The jecting end 13 of the dog forms afingerold to permit its being turned.

To set the wrench-head in adjusted position I provide a detent 15arranged in a socket in the end of the bar A and held forced outwardlyby a spring 16, into one of the interspaced notches 17 in the adjacentedge of the wrench-head.

In operation the dog 12 will be turned to engage with the teeth of thewrench-socket from the desired side. By then oscillating the bar A,handle 2 and wrench-head the nut may be unscrewed. When it is desired toturn a nut in the opposite direction the dog should be turned to engagewith the opposite sides of the wrench-socket teeth. By providing anactuating dog of the character shown the dog is forced outwardly by theteeth upon the wrench-socket so that when in extreme outward position itcan be easily turned.

It will be evident that the construction and combination may be more orless modified without departing from my invention, the scope of which isdefined in the claim.

Having now descibed my invention, what I claim as new, and desire tosecure by Letters Patent, is:-

In a wrench, the combination with a bar, of a wrench-head pivoted to andprojecting laterally therefrom, a nut socket rotatively supported insaid wrench-head, rearwardly extending teeth circumferentially arrangedupon the inner face of said socket, a reversible dog engaging with saidteeth and provided with a spindle extending through said. wrench-headparallel with said nut socket with its outer end projecting beyond theadjacent face of the wrench head, and a surrounding pressure spring forsaid dog, said spring being arranged within the wrenchhead.

In testimony whereof I aflix. my signature in presenceof two witnesses.

HENRY LUND.

Witnesses:

H. S. JOHNSON, EMILY F. OTIS.

